Table 2. Hole Mobilities for OFETs of 1a/b and 2a/b.
| molecules | fabrication method | μ (cm2 V–1 s–1)a |
|---|---|---|
| 1a | dip coating | 0.55 ± 0.13 |
| highest: 0.76 | ||
| bar coating | 0.72 ± 0.13 | |
| highest: 0.94 | ||
| 2a | dip coating | 1.29 ± 0.20 |
| highest: 1.62 | ||
| bar coating | 1.64 ± 0.17 | |
| highest: 1.98 | ||
| 1b | dip coating | (5.8 ± 3.8) × 10–3 |
| highest: 1.46 × 10–2 | ||
| bar coating | 0.21 ± 0.06 | |
| highest: 0.34 | ||
| 2b | dip coating | (6.0 ± 4.3) × 10–3 |
| highest: 1.62 × 10–2 | ||
| bar coating | 0.43 ± 0.09 | |
| highest: 0.57 |
a
The average mobilities were measured from 47 independent dip-coated OFETs for 1a, 70 for 2a, 28 for 1b, and 30 for 2b in ambient air, and from 16 independent bar-coated OFETs for each compound of 1a/b and 2a/b in a N2 atmosphere.